Решение задачи N1285 теория вероятностей Пуассона

1285. The probability of releasing a drill bit of increased brittleness (rejection) is 0.02. The drills are stacked in a box of 100 pieces. What is the probability that: a) there are no defective drills in the box; b) the number of defective drills will not be more than 2?

Detailed solution. Decorated in Microsoft Word 2003 (Quest decided to use the formula editor)